Datasheet

Package information STM32L072xx
124/149 DocID027100 Rev 4
Figure 43. UFBGA100 - 100-pin, 7 x 7 mm, 0.50 mm pitch, ultra fine pitch ball
grid array package recommended footprint
ddd - - 0.080 - - 0.0031
eee - - 0.150 - - 0.0059
fff - - 0.050 - - 0.0020
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Table 83. UFBGA100 recommended PCB design rules (0.5 mm pitch BGA)
Dimension Recommended values
Pitch 0.5
Dpad 0.280 mm
Dsm
0.370 mm typ. (depends on the soldermask
registration tolerance)
Stencil opening 0.280 mm
Stencil thickness Between 0.100 mm and 0.125 mm
Table 82. UFBGA100 - 100-pin, 7 x 7 mm, 0.50 mm pitch, ultra fine pitch ball grid array
package mechanical data (continued)
Symbol
millimeters inches
(1)
Min. Typ. Max. Min. Typ. Max.
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